Thank you for your inquiry.
The points to be aware of are as follows.
1. Number of microphone array channels and sampling rate
2. Transfer function
If these are not set correctly, the network will not work.
Also, there is something newer than the Cookbook sample, so please refer to the link below.
IJCAI-PRICAI 2020 tutorial on HARK (19th HARK tutorial)
Best regards,
HARK support team.